Binder



C. l. DUNBAR.

BINDER.

APPLICATION FILED oc. 4, 1921 1,405,303, Patented Jan. 31, 1922.

UNIT-ED SIMSY vtj:rrinLrLsf J1.- Duivnnngor "kIQAMAzoo, i/ricirrean. 'K

'To @Il w'omt maj/concern.' "l 1tknown"that"I, GHARLESLJ Dorman; acitizen v of the United States, and 'resident 'of Kalamazomfinthe4county ofiKalamazoo'and State of Michigan, have V1invented certain newand useful Improvements v4inaBinder, ot-wlrich the followirgis -aspecification.

My invention relates to binders and particularly to an improvement inthe method of mounting posts in the top and bottom members of thebinder. An object of my invention is to provide a binder construction inwhich the objections to the sectional'posts heretofore employed areeliminated. In the sectional post constructions it is well known `thatthe posts are usually joined by screw connections, additions to orsubstractions from the length of the post being secured by adding orremoving screw threaded sections of the post. In attempting to remove anouter section of a screw threaded post it frequently happens that othersections are unscrewed instead of the one desired and diiiiculty issometimes experienced in separating the sections thus removed. singleone-piece posts of graduated length and mount the posts in the binderframe or base by a bayonet joint. When a different length of post is tobe applied it is a simple operation to remove the one-piece post andreplace it by another of the proper length.

Another object of the invention is to provide means in the top member ofthe binder for securely engaging the posts and providing forconsiderable variation of length of posts without varying the grippingcapacity.

The desired result is secured by providing a block having a throughaperture of'substantially the size of the post and mounting the lockingelement near the lower end thereof. Thus the post will be securelygripped .without the possibility of -twistingor cantgIhe invention willbe more readily understood by reference to the accompanying, in which,

Fig. l is a sectional view showing a binder constructed in accordancewith my invention;

Fig. 2. is a view of a slightly modified form of a bayonet jointconnection;

Fig. 3 is a sectional view on the line 3 3 of Fig. l;

Fig. 4 is a sectional View on the line 1 -4t of Fig. 1;

,its NT In my construction I provide f liilipiiqtionieatGatter 4, lego..Y serial no. 414,390.

In the drawings it will be seen that I provide bottom and top framemembers 10, 11.

Mounted in the bottom or base member 10 spectively, adapted to cooperatewith a pin 17 projecting from the post 14;. As shown in Figs. 5, 6 and7, posts of dili'crentlengths may be employed, these being of one kpieceand thereby avoiding the objectionsto sectional posts such as heretoforeemployed; By employing one-piece posts there is no possibility ofdisengagement after they are locked as will occur if a similar form Vofconnection is provided in a sectional post.

In the upper frame member or top` 11 I provide similar blocks 18 each.having through apertures 19 therein which are of substantially the sizeof the posts. A transverse slot is provided near 'the lowersurfacev ofthe blocks and in the slot I mount a locking bar 20 adapted to beactuated by av screw 21in the usual manner. It will be seen that becauseof the nature of the apertures in the blocks 18 the post is allowedconsiderable rfreedom of movement. It may protrude, if desired, but if anon-protruding postV is wanted such'a construction is provided for; and,furthermore, posts may have considerable latitude of vertical movementwithout missing the locking bar. In the construction shown in Figs. 1and 2 the blocks are shown as of solid construction,

projects above the j Specification of lLetters Patent.'Ptenfd13311531;f1922.-' j

'FigSgafe 'and-v .are v'iivslzdf different 'lengths' of posts adaptedtop employed; f S'isa viie'w'ofja inodiiriedfform of' POSS.; and.; Yflug'. eis d seamen 'vjiew'uirogh haar .ing vertical and horizontalslots15,-16,`re i but in the construction of Fig. 9 IA have 1 composed of tworivets 24.

In the modilied form shown inFig. 2 the' shown a modification in whichthe block is v parts 22, 23 joined by to engage with the pin. Otherwisethe construction remains the same as that heretofore described. Y

Obviously the construction herein illustrated is capable of muchmodicationand I do not Wish to be limited except as indicated in theappended claims.

I claim:

l, ln a binder, the combination of base and top members, said basememberhaving Va socket Wholly Within the limits, of the member, a plurality ofone-piece posts of varying lengths and of uniform effective diameter,and means providing a bayonet joint connection between a selected postand the socket in said base member.

2. ln a binder, the combination of base and top members, said basemember having a socket Wholly `Within the limits of the member, aplurality of one-piece posts of varying lengths and of uniform effectivediameter, means providing a bayonet joint connection between a selectedpost and the socket in said base member, said top member beingv ofsubstantial thickness and having' through openings for the reception of,the

posts, and a lockingA bar Within said top member and located near theloweredge thereof for engaging and holding said posts.

Signed at (Jhicago, Ill., this 2nd day of October, 1920. i Y .i CHARLES'J. DUNBAR.

